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From: Juergen Beisert <jbe@pengutronix.de>
To: barebox@lists.infradead.org, f.koliqi@gmail.com
Subject: Re: barebox on imx23-olinuxino
Date: Mon, 27 Aug 2012 20:01:50 +0200	[thread overview]
Message-ID: <201208272001.50503.jbe@pengutronix.de> (raw)
In-Reply-To: <CACO6GO7pfavefJa_wTcR7ifHwWVS8up7-TRW8ArQzXoeL1JHCA@mail.gmail.com>

Hi Fadil,

Fadil Berisha wrote:
> Based on falconfing and mx23-evk, I did barebox port on
> imx23-olinuxino board.  Here is barebox boot:
>
> Board: Olimex.ltd imx23-olinuxino
> registered netconsole as cs1
> Min. frequency is 1476 Hz
> Max. frequency is 48000000 Hz
> mxs_mci@mci0: registered as mci0
> ehci@ehci0: USB EHCI 1.00
> No MCI card preset

In the mci-core.c source file you can enable the DEBUG macro to include more 
debug output. This will print more information about the MCI card detection. 
Maybe it helps.

Check also:
 - pin multiplexing
 - power supply to the SD card
 - GPIOs for detecting the SD card (some kind of inserting signal)
 - increase the min frequency to about 400 kHz. Maybe 1476 Hz are too slow and
   conflict with some timeout values

Regards,
Juergen

-- 
Pengutronix e.K.                              | Juergen Beisert             |
Linux Solutions for Science and Industry      | http://www.pengutronix.de/  |

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  reply	other threads:[~2012-08-27 18:03 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-27 15:37 Fadil Berisha
2012-08-27 18:01 ` Juergen Beisert [this message]
2012-09-02  5:25   ` Fadil Berisha
2012-09-04 20:47     ` Sascha Hauer
2012-09-04 21:23       ` Fadil Berisha

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